The Hertzsprung-Russell Diagram

Answer the questions using the above HR Diagram

1. What factor affects the color of a star?

2. What is luminosity?

3. What factor affects the luminosity of a star?

4. What is the approximate surface temperature of the sun?

5. What is the color of the stars with the highest surface temperature?

6. What type of star has a high temperature but a low luminosity?

7. Most of the stars on the HR Diagram are classified as which type of star?

8. How is it possible for white dwarfs to have a lower luminosity than the sun even though the sun is cooler than white dwarfs?

9. What is the color of the stars with the lowest surface temperature?
10. What type of star has a low temperature but a high luminosity?

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

i think its 100.

hope this !